Folding apparatus for printing-presses.



. PATENTED APR. 14, 1908. H. I HUSBY. FOLDING APPARATUS FOR PRINTING PRESSES.

APPLIOATION FILED MAR. 29. 1907.

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PATENTED. APR. 14,' 1908.

H. P. HUSBY. FOLDING APPARATUS FOR PRINTING PRESSES.

APPLIOATION FILED MAR. 29, 1907.

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UNITED STATES PATENT OFFICE.

HANS P. HUSBY, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE GOSS PRINTING PRESS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

FOLDING APPARATUS FOR PRINTING-PRESSES.

Specification of Letters Patent.

Application filed. March 29, 1907.

Patented April 14, 1908.

Serial No. 365,303.

To all whom it may concern.

Be it known that I, HANs P. I-IUsBY, a citizen of the'United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Folding Apparatus for Print ing-Presses, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to printing presses, and has particularly for its object to provide new and improved apparatus for transversely folding sheets received from a perfecting press.

It consists in the construction and arrangement illustrated in the drawings and hereinafter described.

What I regard as new is set forth in the claims.

In the accompanying drawings,-Figure 1 is an end elevation of a folding cylinder and adjacent parts, being a section taken on line 1-1 of Fig. 8; Fig. 2 is a sectional view on line 2-2 of Fig. 3 Fig. 3 is an end elevation of one of the cross-heads by which the folding blades are operated; Fig. 4 is an edge view thereof; Figs. 5, 6 and 7 are erspective views of certain of the cams whic control the operation of the folding blades Fig. 8 is a view taken at an angle of ninety degrees to the view shown in Fig. 1 Fig. 9 is a perspective view of one section of the folding blade.

Referring to the drawings,-1O indicates the folding cylinder, which is mounted on a shaft 11 in the usual way,-said shaft being supported in the side members 12-13 of the frame of the ress, as shown in Fig. 8.

14-15 indicate folding rollers arranged in juxtaposition adjacent to the cylinder 10 in the usual way. Said rollers are mounted on shafts 16-17, as shown in Fig. 1, and serve to fold the sheets delivered to them by the folding-blades on the cylinder 10.

18-19 indicate shafts carried by the cylinder 10 near the periphery thereof and set 180 degrees apart. The shaft 18 carries a folding-blade 20, and the shaft 19 a folding-blade 21, which, as shown in Figs. 8 and 9, are best composed of a number of sections 22, but the specific construction of the folding-blades has nothing to do with my present invention, and any suitable type of blades may be employed.

23-24 indicate cams secured to the sidem'ember 12 of the frame of the press, as

shown in Figs. 1 and 8. The cams 23-24 are arranged adjacent to the folding rollers 14-15 and cooperate to properly guide the folding-blades so that they fold the sheets intermediately and tuck them into the bite of the folding rollers 14-15.

25 indicates a cam arranged below and somewhat at one side of the cams 23-24,- said carn bein also secured, to the side-member 12 of the frame of the press by means of an intermediate block 26, shown in Fig. 8.

27 indicates cross-heads, one of which is mounted upon the end of each of the shafts 18-19 which is adjacent to the cams 23-24, and is non-rotatably secured thereto. Each of said cross-heads 27 is provided with a cen tral hub 28 by which a firmer connection is provided with the shaft upon which it is mounted, and at its ends is provided with two pairs of rollers 29-30 and 31-32, respectively, the rollers 29-30 being at one side of said cross-head, and the rollers 3 1-32 at the other side. Furthermore, the rollers 31-32 are arranged so that a plane intersecting their axes is coincident with the plane of the folding-blades, while a plane intersectin the axes of the rollers 29-30 intersects t e lane of the folding-blades at an acute 'ang e. It is to be understood that while I prefer to support the rollers 29-30 and 31-32 by a single integral cross-head, as described, my invention is not restricted to this particular construction, as they may be supported in any other suitable way, provided they are arranged as described,-towit in intersecting planes. The parts carried by the cross-head 27 are similar to those described, and consequently need not be referred to specifically. I

33 indicates a ring-shaped cam, the ends of which are connected to the end portions of the cam 25, as shown at 34 and 35 in Fig. 1. Said cam is also secured to the'sidemember 12 of the frame shown at 36 in Fig. 8. The rollers 29-30 and 31-32 are secured to the cross-head 27 by pivots 37, as shown in Fig. 2, or in any other suitable way.

The operation is as follows :-Assurning that the folding cylinder 10 rotates in the direction of the hands of a clock, as indicated by the arrow in Fig. 1, when the parts are in the position shown in Fig. 1, the roller 30 will engage the cam 24, and the roller 29 of the press, as.

will ride on the inner edgeof the cam 23. As it still continues to rotate, the crosshead 27 will be rocked to move the leading edge of the folding-blade down between the folding rollers 1 1 115, at the same time moving the roller 32 into the recess 38 in the u per side of the cam 25, as shown in Fig. 7.

hen the parts reach the position shown in dotted lines in Fig. 1, the folding blade will be in an upright position, its ower edge being down at its lowest point, between the rollers 1415. At this time the roller 29 will be about to pass over the apex of the cam 24. Further rotation, of the cylinder will cause said roller to ride on the inner margin of the cam 24,*the roller 32 then running on the inner margin of the cam ring1 33, the folding blade being thereby wit drawn from between the rollers 14-15. The parts will afterwards assume the position shown at the top in Fig. 1 being held in such osition by the cam ring 33 until the cam 23 is again reached. I

By providing the folding-blade with guide rollers arranged in a plane which intersects the plane of the'folding-blade the cams which operate on said rollers or bowls do their work more smoothly and without any knock or blow, as they operate at a more favorable angle, so that they obtain a sufficient leverage to turn the folding-blade into and out of operative position without any such knock or blow or labor on the stationary folding cams. The guide rollers or bowls arranged in the plane of the folding-blade or knife operate to guide the folding-blade accurately into the folding cam, bringing the edge ofthe folding-blade into position and returning it from operative position on the same curve, thereby making certain that the ed e of the folding-blade will not touch the fo ding rollers or have any parallel motion at its lowest oint by which it might strike the folding rol ers.

By this construction I am able to dispense with movable cams,the entire operation of folding being effected by means of stationary cams,-which is a decided advantage.

It will be understood that instead of using rollers on the cross-head any other e uivalent devices may be employed and t e term .frollers as used in the claims is to be construed accordingly.

That which I claim as my invention, desire to secure by Letters Patent, is,

1. In a folding a paratus for printing and presses, a folding cy inder, a folding-blade carriedby said cylinder, folding rollers co acting therewith, guide rollers connected with the folding-blade and arranged in a lane which intersects the plane of said folding blade, and stationary cams adapted to engage the latter rollers for actuating said folding-blade.

2. In a folding apparatus for printing presses, the combination of a cylinder, a folding-blade carried thereby, folding rollers co- 0 crating therewith, a pair of guide rollers in t e plane of said foldingblade, a pair of guide rollers in a plane intersecting the plane of the folding-blade, and stationary cams adapted to be engaged by said rollers and operating to actuate said folding-blade.

3. In a folding apparatus for printing presses, the combination ofa folding cylin der, a shaft carried thereby, a folding-blade carried by said shaft, folding rollers cooperating with said fo lding-blade, a cross-head car ried by said shaft, guide rollers carried by said cross-head in a plane which intersects the plane of said folding-blade, and stationary cams adapted to be engaged by said guide rollers for actuating said folding-blade.

'4. In a folding apparatus for printing presses, the combination of a folding cylinder, a shaft carried thereby, a folding-blade carried by said shaft, folding rollers cooperating with said folding-blade, a cross-head carried by said shaft, a pair of guide rollers carried by said cross-head in the plane of said folding-blade, a pair of guide rollers carried by said cross-head in a plane which intersects the plane of said folding-blade, and stationary cams adapted to be engaged by said guide rollers for actuating said folding-blade.

5. In a folding-apparatus for printing presses, a rotary carrier, a folding-blade carried thereby, folding rollers coacting therewith, guide rollers connected with the foldingblade and arranged in a lane which intersects the plane of said folding-blade, and stationary means adapted to engage said guide rollers for actuating the folding-blade.

6. In a folding-apparatus for printing presses, a rotary carrier, a folding-blade carried thereby, folding rollers coacting therewith, guide rollers in the plane of the foldingblade and connected therewith, guide rollers connected with the folding-blade and ar ranged in a plane which intersects the plane of said folding-blade, and means adapted to engage the'latter guide rollers for actuating the foldingblade.

7. In a folding apparatus for printing presses, a folding cylinder, a folding blade carried by said cylinder, folding rollers coacting therewith, two pairs of guide rollers arranged in intersecting planes, and means cooperating with said rol ers for actuating the folding blade.

HANS I. HUSBY.

Witnesses:

MINNIE A. HUNTER, JOHN L. JACKSON. 

